thats disappointing. he won't get as much sells than if he would take time... oh well. it is what it is. This game will probably be forgotten after its ready (or even before) to be "sold" because there won't be any content why buy a game if there is no content? No one will buy that game. It will just die in the corner while the other games that are actually taking to to be developed are actually growing and will last for a longer time. And they also use different ways to get money, early access, patreon, subscribe star, have one or two versions ahead and people buying the version that is ahead, etc.
(Im just being realistic. Nothing rude intended)